Thanks to your kind reply.
We use Ignite to Group By Query about time series data. However, I have seen
a lot of data, so when I create TimeWindow through Expiry Strategy in one
cache, I see that it uses too many resources to expire entries.

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As a result, I have adopted a method of simply destroying the cache and
erasing all entries in that time window. Therefore, creating and destroying
multiple Cache seems inevitable. :(
I first noticed that the oldest node acts as a coordinator.
Thank you for your valuable information. :)
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